Tank for water-closets, &amp;c.



' G. 11.. BAILEY. TANK FOR WATER GLOSETS, 6w.

APPLICATION FILED R037. 18, 1908.

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- Patented Nov. 23, 1909.

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lpeclloation 0! letter: f sten t. P

To all whom it may concern:

Be it known that I, Gnonon Kimm e a resident of Pittsburg, in the county of Al egheny and State of Pennsylvania, have invented a new and useful Im rovement in- Tanks for Water-Closets, &c., of which the.

following is a specification.

This invention relates to flushing and like tanks and more particularly to flushing tanks for water closets'and the like.

The object of the invention is to provide a tank for this purpose constructed of sheet metal and in which dripping and other objectionable features due to sweating is overcome.

Sheet metal flushing tanks covered with enamel have been proposed. Such tanks are sanitary and sightl but are subject to sweating and objectiona le on that account. Attempts have heretofore been made'to overcome this objectionable feature by means of what amounts to a double tank, that is, one tank within another.

The present invention aims to secure a tank in which the sweating feature islargely, if not entirely, overcomeand by a construction which 18 simple and cheap to manufacture.

The invention comprises the construction and arrangement of parts hereinafter described and claimed.

In the accompanying drawing Figure 1 is a perspective view of my improved tank with the cover removed; Fig. 2 is a vertical transverse section through the same with the cover in place; Fig. 3 is a vertical longitudinal section through the same showing modified means for holding the cover in place; Fig. 4 is in part a plan View and in part a horizontal section through the same; Fig. 5 is a perspective view of the outer front sheet; and Fig. 6 is a detail view of a modification of the means for fastening the cover.

The tank is provided with a rear wall 1 and bottom 2 of single thickness and preferably formed from single sheet of metal bent to angle shape, and with an outer combined front and end wall 3, and an inner combined end and front wall 4. The walls 3 and 4: are each formed of a single sheet of metal bent to form the front and end'wall portions with rounded corners as shown. These are joined to the rear wall and bottom by any suitable means, but preferably by welding ,so as to provide a joint of not materially greater Application filed number 10,1005.- sea 116,485,856.

outer walls.

order to reduce'to'a minimum the amount of welding or" other joining 'to' be done'the sheets are so shaped that a single joint will unite all three of the sheets formin' [the tank. To this end the outer front an [end tented Nov.- 23, 1909; 1 if thickness than the sheets themselves; In

sheet 3 has its bottom edgeturned or flanged I inwardly as at 5, and vertical edges of the end wall ontions also flanged inwardly as at 6, the nges 5 and 6 in width bein equal to thes ace 7 between the inner an outer sheetinto contact with the edges of the inner sheet both at the bottom and at the back, and the rear wall and bottom are cut to fit a ainst these meeting edges of the sheets 3 an 4. Consequently, a single welded, brazed or soldered joint unites all three sheets, there being formed the two vertical joints 8 at the rear and the horizontal joint 9 at the bottom. The preferred form of uniting these sheetsis by either the electric welding or blow pipe process.

The joints 8 and 9 are inward from the his brings the edges of the v outer exposed surfaces of the tank so that they are invisible and therefore do not mar the appearance of the tank. Furthermore,

.the joints are formed in fiat surfaces and not on the corners, which isof importance as it not only is easier to make the weld but also prevents the enamel from running off when enameling. The joints are somewhat thicker than the other parts of the sheet and in enameling hold the heat somewhat longer. When the weld is made on corners or angles the enamel is likely to run off before the metal cools sufficiently to hold it. This is overcome by forming the weld inwardly from the corners in flat surfaces. This feature is applicable to all forms of sheet metal tankswhether having double or single walls and the claims will be understood not to be limited to double walled tanks except where so specified. The rear wall and bottom formed from a single sheet is also applicable to a tank without double walls and the claims including this feature are intendor more corrugations 13 to 've strength. The rear wallis likewise beade at its top, as shown at 14.

The tank is closed'by a cover 15, also of sheet metal pressed to shape and enameled. Said cover may be held in place by various means. Fig. 2 shows it held in place by means of cap nuts 16 on small threaded rods 17 adapted to project through holes in the cover and being threaded into angle plates 18 held by the screws or other members 19' used for securing the tank to the wall or other base. Fig. 6 shows the rod 17 provided with a loop or eye 20 through which the screw 19 passes. The arrangement of Fig. 2 is preferred, as it enables the rod 17 to be adjusted vertically and provide just enough projection to receive the nut 16 and enable the cover to be tightly clamped. Fig. 3 shows the ends of the cover curled over to underlie the beads 11 of the end walls of the tank as shown at 21. This cover is slipped on from the front and requires no other fastening means.

The body of thetank described is composed of only three sheets, namely, the rear wall and bottom sheet and the inner and outer front and end forming sheets, and these three sheets are. united by a single joint thus reducing to a minimum the amount of welding or other labor necessary to unite the sheets. The tank after being formed is coated with enamel, at least on its exterior surface and has the interior surface and the space between the inner and outer walls either enameled, galvanized or covered with aint or other substances to prevent CO1IOS1OI1. The tank is provided with the usual inlets and outlets and flushing mechanism of any suitable character.

In the manufacture of thetank the sheets forming the same will be bent'to shape and straine beyond their elastic limits, so that there will be no tendency of the metal to move and crack the enamel. The rounded corners and the bead at the bottom provide a surface which readily takes the enamel and with little dan er of the same cracking off.

The double ront and end walls provide an air space which prevents sweating on the front and end ortions of the tank, and since the rear wall 1s usually placed in close contact with the wall of the room or other base, there is little or no opportunity for sweating at this point, and the restricted area at the bottom produces such a small amount of sweating that it is not objectionable. It is, however, covered with a mat 22 of waterroof felt or other fibrous material which acts as a heat insulator and prevents sweating. The tank is therefore practically free from objection on account of the sweatin In order to remove the water of con ensation in the space 7, said space? is connected by a drain tube 24' with the flushing fitting 25. In flushing water may back through the drain tube into the space 7, but this will do noharm as it will again run out as soon as the flushin valve closes. The end of the drain tube is nt down at its ends so that it acts as a siphon to drain all the water from the space 7 What'I claim is 1. A flushing or like tank composed of sheet metal having its front and end walls formed from a single sheet and the bottom and rear wall formed from another sheet bent to shape, said sheets being joined at the bottom and the rear vertical corners.

2. A fi'ushing or like tank composed of metal having its front and end walls formed from a single sheet bent to shape and the 'rear wall and bottom formed from another sheet bent to shape, said sheets being welded together at the bottom and rear vertical corners.

3. A flushing or like tank composed of metal having its front and end walls formed from a single sheet bent to shape and having the bottom and back welded to the sheets forming the front and end walls.

4:. A flushing or like tank composed of sheet metal and having double front and end walls with an air space therebetween and having a single sheet rear wall and bottom united to the sheets forming the inner and outer front and end walls, the inner front and end walls being corrugated.

5. A flushing or like tank composed of sheet metal having double front and end walls with an air space therebetween and having a single rear wall and bottom welded to the sheets forming the inner and outer front and end walls.

6. A flushing or like tank having double front and end walls composed of substantially parallel inner and outer walls or webs with an air space therebetween, and a rear wall and bottom of single thickness.

7. A flushing or like tank having double front and end walls composed of outer and inner walls or webs with an air space therebetween, and a rear wall and bottom of single thickness, and a non-heat conducting mat covering said bottom. I

8. A flushing or like tank formed from sheets joined by welding, the joints being in fiat portions of the sheets.

9. A flushing or like tank com osed of sheet metal, thesheet forming the rent and end walls having its bottom and rear edges turned inwardly, and the bottom and back being welded to said inturned edges.

10. -A flushin or like tank composed of sheet metal and having double front and end walls and a single rear wall and bottom, the sheet forming the outer front and end walls having its bottom and rear edges turned inwardly to meet the edges of the 1nner wall and of the rear wall and bottom,

whereby a single joint unites all of said parts.

11. sheets, one forming outer front and end Walls, and another forming inner front and end walls and the third forming-the rear wall and bottom, the outer front and end wall sheet having its bottom and rear edges turned inwardly and meeting the edges of 13. A sheet metal tank provided with acover, screws or like members extending.

through the rear wall of the tank for securing the same to a suitable base, and threaded rods extending upwardly from said screws through holes in the cover and arranged to receive nuts on their upper ends.

1 1. A sheet metal tank provided with a cover, bosses in said tank, rods threaded into said bosses and having threaded upper ends A sheet metal tank composed of three projecting through holes in the cover, and nuts on said rods outside the cover. v

15. A flushing or like tank composed of sheet metal, the sheet forming the front and end walls having its bottom edges swelled outwardly and turned inwardly and its rear edges turned inwardly, the bottom and back being welded to said inturned edges.

16. A flushing or like tank composed of sheet metal, the sheet forming the front and end walls having the top thereof provided with a strengthening bead and the bottom edges thereof swelled outwardly and turned inwardly and the rear edges thereof turned inwardly, and the bottom and back being welded to said inturned edges.

17. A flushing or like tank composed of sheet metal, and comprising a sheet bent to form the front and end walls and a bottom welded to the lower ed es of the end walls, and a rear wall welded to the rear vertical edges of the end walls.

' In testimony whereof, I have hereunto set my hand.

GEORGE H. BAILEY.

Witnesses:

WILLIAM I. KING, F. W. WINTER. 

